Electronically operated actuator device for safety assemblies and relative safety assembly

Abstract

An electronically operated actuator device for safety assemblies comprises an anchoring body ( 2 ), anchoring means adapted to be removably inserted in said anchoring body ( 2 ), an actuator pin ( 3 ) projecting from the anchoring body ( 2 ) along a predetermined development axis (A) and having a first anchoring end ( 4 ) inside the anchoring body ( 2 ) and a second outer end ( 5 ) adapted to interact with a switching device following the approach of the actuator device. The actuator pin ( 3 ) is adapted to be oriented about the development axis (A) to be positioned according to at least two positions mutually rotated by 90° around said development axis (A), the anchoring body ( 2 ) being designed to block the rotation of the actuator pin ( 3 ) around the development axis (A), or to limit it to a value lower than 90°.

The invention claimed is: 
     
         1 . An electronically operated actuator device for safety assemblies, wherein a safety assembly is adapted to be associated with a machine or industrial plant or to a protection thereof and comprises an electronically actuated switching device ( 21 ) provided with at least one remote communication element ( 28 ), the actuating device comprising:
 an anchoring body ( 2 ) adapted to be anchored to a fixed or movable part of the machine or plant or of the relative protection;   anchoring means of said anchoring body ( 2 ) to the fixed or movable part of the machine or plant or of the relative protection, said anchoring means being adapted to be removably inserted in said anchoring body ( 2 );   an actuator pin ( 3 ) projecting from said anchoring body ( 2 ) along a predetermined development axis (A) and having a first anchoring end ( 4 ) inside said anchoring body ( 2 ) and a second outer end ( 5 ) adapted to interact with the switching device following the approach of the actuator device; and   at least one remote communication element ( 18 ) adapted to communicate with the communication element ( 28 ) of the switching device ( 21 ) by sending or receiving a presence signal;   wherein said actuator pin ( 3 ) is adapted to be oriented with respect to said anchoring body ( 2 ) about said development axis (A) to be positioned according to at least two positions mutually rotated by 90° around said development axis (A).   
     
     
         2 . The device as claimed in  claim 1 , wherein said anchoring body ( 2 ) is designed at its inside to block the rotation of said actuator pin ( 3 ) around said development axis (A), or to limit the rotation to a value lower than 90°, when said anchoring means are inserted in said anchoring body ( 2 ) for the anchoring of said anchoring body ( 2 ). 
     
     
         3 . The device as claimed in  claim 2 , wherein said remote communication element ( 18 ) is placed inside said actuator pin ( 3 ). 
     
     
         4 . The device as claimed in  claim 3 , wherein said remote communication element ( 18 ) is housed in a recess ( 19 ) made in said second end ( 5 ) of said actuator pin ( 3 ). 
     
     
         5 . The device as claimed in  claim 1 , wherein said first end ( 4 ) of said actuator pin ( 3 ) comprises a flange ( 9 ) substantially orthogonal to said development axis (A) and having a substantially quadrangular shape, said flange ( 9 ) being adapted to be inserted in said anchoring body ( 2 ) according to at least one pair of positions mutually rotated by 90°. 
     
     
         6 . The device as claimed in  claim 1 , wherein said anchoring body ( 2 ) comprises first and second anchoring means suitable for allowing selective anchoring to two mutually orthogonal walls. 
     
     
         7 . The device as claimed in  claim 6 , wherein said first anchoring means comprise at least one first through hole ( 14 ) which pass through said anchoring body ( 2 ) along a first transverse direction (Y) transversal to said development axis (A). 
     
     
         8 . The device as claimed in  claim 6 , wherein said first transverse direction (Y) of said at least one first hole ( 14 ) is orthogonal to said development axis (A). 
     
     
         9 . The device as claimed in  claim 8 , wherein said second anchoring means comprise at least one second through hole ( 16 ) made in said anchoring body ( 2 ) in a plane (π) parallel to said development axis (A) and orthogonal to the first transverse development direction (Y) of said at least one first hole ( 14 ). 
     
     
         10 . The device as claimed in  claim 9 , wherein said second through holes ( 16 ) extend along respective second directions (Z) parallel to said development axis (A). 
     
     
         11 . The device as claimed in  claim 10 , wherein said first direction (Y) and said second direction (Z) are mutually orthogonal. 
     
     
         12 . The device as claimed in  claim 5 , wherein said anchoring body ( 2 ) comprises a shell composed of one or more internally shaped parts ( 6 ,  7 ) to define a housing seat ( 8 ) for said first end ( 4 ) of said actuator pin ( 3 ), said housing seat ( 8 ) being designed to block the rotation of said actuator pin ( 3 ) about said development axis (A), or to limit the rotation of said actuator pin ( 3 ) about said development axis (A) to a value lower than 90°, when said shaped parts ( 6 ,  7 ) of said shell are assembled together. 
     
     
         13 . The device as claimed in  claim 12 , wherein said housing seat ( 8 ) has a front section of a shape substantially complementary to said flange ( 9 ), according to at least one pair of positions mutually rotated by 90°. 
     
     
         14 . The device as claimed in  claim 13 , wherein said second anchoring means comprise a second through hole ( 16 ) made in one of said shaped parts ( 6 ) of said shell and a further second through hole ( 16 ) made in the other of said shaped parts ( 7 ) of said shell. 
     
     
         15 . An electronically operated safety assembly, comprising:
 an actuator device ( 1 ) according to  claim 1  designed to be anchored to the movable or fixed part of the access to be controlled and provided with at least one first remote communication element ( 18 );   a switching device ( 21 ) adapted to be anchored to the fixed or movable part of an access to be controlled and provided with at least one second remote communication element ( 28 ) suitable to communicate, upon the closure of said access, with said first communication element ( 18 ) by sending or receiving a presence signal.   
     
     
         16 . The device as claimed in  claim 6 , wherein said first anchoring means comprise at least one first pair of through holes ( 14 ) passing through said anchoring body ( 2 ) along a first transverse direction (Y) transversal to said development axis (A).